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प्रश्न
What is cris-cross inheritance?
उत्तर
The inheritance of characters from the father to his grandson through his daughter is called criss-cross inheritance.
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संबंधित प्रश्न
A family consists of two parents and their five children and the pedigree chart shown below shows the inheritance of the trait colour blindness in them.
What does the child 1 indicate about this trait?
Explain the Term Linkage.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Females are more affected by sex-linked genetic disorders.
Short Answer Question.
Observe the given pedigree chart and answer the following question.
Give an example of a trait in human beings which shows such a pattern of inheritance.
Haemophilia is more common in males because it is a ____________.
Which type of progeny would be produced if a normal visioned man marries a colour-blind woman?
Girl of normal vision whose father was colour blind marries a man of normal vision whose father was also colour blind. The sons of this marriage would be ______.
The genes present on non-homologous part of Y-chromosome are called ____________.
A man is haemophilic. It indicates that he ______.
Types of sex- linked genes:
(Haemophilia, Ichthyosis, nephritis, Myopia, Hypertrichosis, Retinitis pigmentosa)
Column 'A' | Column 'B' | |
(1) | Completely X- linked genes | ______ |
(2) | Completely Y- linked | ______ |
(3) | Incompletely sex-linked genes | ______ |